Fatal error: Uncaught Error: Interface "League\Fractal\Resource\ResourceInterface" not found in /srv/disk1/2895578/www/whittonphotographicclub.org.uk/concrete/vendor/league/fractal/src/Resource/ResourceAbstract.php:16 Stack trace: #0 {main} thrown in /srv/disk1/2895578/www/whittonphotographicclub.org.uk/concrete/vendor/league/fractal/src/Resource/ResourceAbstract.php on line 16